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Synthesis, Characterization and Aqueous Properties of a New Hybrid Fluorocarbon Cationic Surfmer
Author(s) -
Che YuJu,
Gao Qing,
Fang Meiling,
Tan Yebang,
Wang Xiaoli,
Meng Fanjun
Publication year - 2015
Publication title -
journal of surfactants and detergents
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.349
H-Index - 48
eISSN - 1558-9293
pISSN - 1097-3958
DOI - 10.1007/s11743-014-1649-3
Subject(s) - chemistry , dynamic light scattering , surface tension , fluorocarbon , light scattering , micelle , aqueous solution , rayleigh scattering , pulmonary surfactant , chemical engineering , critical micelle concentration , analytical chemistry (journal) , scattering , thermodynamics , organic chemistry , optics , nanoparticle , biochemistry , physics , engineering
A novel hybrid fluorocarbon cationic surfmer has been synthesized and its aggregation and surface properties have been studied by surface tension, electrical conductivity, steady‐state fluorescence, Rayleigh light scattering, dynamic light scattering and transmission electron microscopy. Through surface tension, electrical conductivity, steady‐state fluorescence and Rayleigh light scattering measurements, the effectiveness of surface tension reduction, the maximum surface excess concentration, the minimum area occupied per surfactant molecule at the air/water interface, the micropolarity and aggregation number of micelles were investigated. The results shows that the surfmer has superior surface activity and lower micropolarity than other surfmers. The critical micelle concentration at different temperatures and a series of thermodynamic parameters ( Δ G mic o , Δ H mic o , and Δ S mic o , Δ G ads o , Δ H mic A , and Δ C pmic o ) of micellization were evaluated. The thermodynamic parameters showed that the micelle formation was entropy‐driven in the temperature range of 15–40 °C. The size and morphology of the aggregates were also confirmed by dynamic light scattering and transmission electron microscopy.